Improvement in eotaey haeeows



GQ BATES.

Rotary-Harrow.

No. 63,199 I Patented Mar 26, 1867.

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'1 i I u I wish isms silent ffw. D G-? canes BATES, 0 KINGSTO N, MASSACHUSETTS. Lette7'8 Patent No. 63,199, dated Mmh 26, 18 67;

IMPROVEMENT In ROTARY HARROWS.

TO ALL WHOM IT MAY CONCERN: p

Be it known that I, CALEB BATES, of Kingston, in the county of Plymouth, and State of Massachusetts, have invented a new and improved Harrow; and I do hereby declare that the following is a full, clear,'and exact description thereof, which will enable others skilled in the art to make and use the same, reference being hadto the accompanying drawings, forming part'ot' this specification, in which- Figure 1 is an inverted plan or under view of my invention.

Figure 2, a side view of the same.

Similar letters of reference indicate like parts. I

'This invention relates to a new and improved harrow of that class which are arranged with a revolving toothed'portion, and are-commonly termed revolving barrows.- The invention consists, in the application of pivoted or swinging blades to the revolving portion or portions, whereby said portions are made to rotate under the draught movement of the implement. The invention also consists in constructing the revolving portions in such a manner that they may be made togear into each other like toothed wheels, so as to insure a simultaneous movement or rotation of both portions.

A represents the frame of the harrow, constructed of triangular or V-form, with a clevis, B, at one end to which the whiflle-tree or splinter-bar is attached. Three harrow teeth, a, are inserted in this front end of the framejA, D D represent two revolving barrows, composed each of a series of radial arms, 6, attached to a hub,

c, the journals or axis cl or which pass through the rear bar 0 oi'the frame A. Through the arms 6 barrow teeth fare driven, any proper number passing through each arm. To the outer ends-of the arms I) of eachharrow D a metal bar, E, is attached, and-these bars E are bent or curved to form tooth-like projections, as shown clearly in fig. 1, so that when the barrows D are adjusted snfiicien tly near together they may gear into each other like toothed wheels, and a-simultanous rotation of both barrows D D-insured. The bar e has a number of holes, g,

made in it, in line with eachother, toadmitof the journals or axes 01 being inserted in any of them, to admit of the barrows being adjusted in or out of gear with each other as occasion may require. To thearms b of each harrow D, and near the outer ends of said arms, there are attached blades F bymeans of joints, which joints may be composed of 'staples i driven into the under sidespf the arms and passing through the blades at their-upper parts, the upper ends of .theblades extending above or beyond the staples i, so that they may bear against-the under sides of the arms, and serve to hold or retain the blades and prevent them from swingingba'ck atone side of the barrows while they are allowed to swing back at the opposite side. By this arrangement the lower ends of'the blades F are made 'to catch into the-earthat one side ofthe barrows and pass freely over it at the opposite side underthe draught movement'of the implement, and the rotation f the harrows D D thereby insured. This harrow is ofeasy or light draught, and cannot readily become clogged'with sods, weeds, or trash,

for the rotation ofthe parts D D being insured, said parts will have a tendencv to clear themselves of all obstructions. 1 I I I Having thus described my invention, 1 claim as new, and desire-to secure by Letters Patent The combination and arrangement of the arms 6, axis d, perforated rear bars e, curved bar E, and swinging blades F, constructed and operating substant'rally as described, for thepurpose specified. CALEB BATES.

Witnesses:

. WM. F. McNAnAnA, I ALEX. F. Ronnn'rs. 

